Senior/Lead Java Developer

We are looking for a Software Engineer to join a team responsible for modernizing a mission-critical aviation platform used by tens of thousands of customers worldwide.

You will help design, build, and evolve cloud-hosted backend services that support the distribution of aviation data across desktop, mobile, and aircraft-connected workflows. This is a unique opportunity to work on a high-impact product while contributing to a large-scale modernization initiative focused on cloud-native architecture, automation, scalability, security, and operational excellence.

Working closely with cross-functional teams, you will help transform a well-established platform into a modern, resilient, and highly scalable ecosystem capable of supporting future growth and new product offerings.

Key responsibilities

• Develop and modernize backend services hosted in AWS

• Design and implement scalable, resilient cloud-native solutions

• Build and improve APIs, integrations, and automated backend processes

• Enhance CI/CD pipelines, infrastructure automation, monitoring, and observability

• Manage and troubleshoot Kubernetes-based environments and containerized applications

• Support production systems and drive reliability, security, and operational improvements

• Collaborate with product, mobile, desktop, QA, and DevOps teams to deliver high-quality solutions

• Leverage AI-assisted development tools to improve engineering efficiency while maintaining high standards of quality and security

Ideal candidate profile

• Experience developing backend applications in cloud environments

• Strong knowledge of AWS and cloud-native architectures

• Hands-on experience with Linux, Docker, Apache, Java and Spring Boot

• Experience with Kubernetes and containerized workloads

• Experience with CI/CD, Infrastructure as Code, and automation

• Understanding of cloud security, monitoring, and production support practices

• Strong troubleshooting and problem-solving skills

• Ability to work independently and collaborate within distributed teams

• English min. B2.

Nice to Have:

• Experience modernizing legacy applications and services

• Experience with SQL Server and MySQL

• Experience building highly available and resilient production systems

• Experience using AI-assisted software development tools

Conditions

• Employment type: B2B or UoP

• Location: Gdańsk

• Work model: 1 day a month in the office in Gdańsk or less frequently, depending on your availability

• Salary: 190 PLN net/h - to negotiate

• Benefits: life insurance, private healthcare, Multisport card